The Flair-It 16844 adapter makes it simple to transition from polybutylene (PB) pipe to PEX tubing with no tools and no crimping required. Just insert the flared fitting into the pipe end and tighten the nut - the patented design creates a secure, leak-free connection, ideal for retrofitting older PB plumbing systems to modern PEX.

• Adapts 3/4" polybutylene pipe to 3/4" PEX tubing
• No tools required - nut and flared insert system
• Patented Flair-It push-and-tighten installation method
• Durable polyoxymethylene (POM) construction
• Ideal for repairing or retrofitting polybutylene plumbing to PEX